期刊
POWDER TECHNOLOGY
卷 217, 期 -, 页码 223-230出版社
ELSEVIER
DOI: 10.1016/j.powtec.2011.10.030
关键词
SAPO-34; High temperature synthesis; Crystallinity; Taguchi orthogonal method
SAPO-34 zeolite-like particles were successfully synthesized at high temperature environment. An L9 orthogonal array of the Taguchi method was implemented to investigate the effects of experimental conditions to prepare SAPO-34 with respect to crystallinity of the final product phase. The results showed that the favorable phase crystallinity was improved by increasing the hydrothermal synthesis temperature and organic template content, whereas increasing the water content in synthesis mixture decreased the crystallinity. No significant changes in crystallinity of the final products were observed by increasing the synthesis duration. In addition, zeolite SAPO-5, which was formed as the impurity in the mid temperature runs, was not be formed at high temperature environment due to its low hydrothermal stability. (C) 2011 Elsevier B.V. All rights reserved.
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